How can we implement an editable JLabel in Java?


JLabel

  • A JLabel class can extend JComponent class and an object of JLabel provides text instructions or information on a GUI.
  • A JLabel can display a single line of read-only text, an image or both text and image.
  • The important methods of a JLabel are setText(), setIcon(), setBackground(), setOpaque(), setHorizontalAlignment(), setVerticalAlignment() and etc.
  • A JLabel can explicitly generate a PropertyChangeListener interface.

Example

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.*;

public class JEditableLabel extends JFrame {
   public JEditableLabel() {
      setTitle("JEditableLabel");
      setLayout(new FlowLayout());

      final JLabel label = new JLabel(" Welcome to Tutorials Point");
      final JTextField textfield = new JTextField();
      final CardLayout cl = new CardLayout();
      final JPanel panel = new JPanel(cl);
      panel.add(label, "label component");
      panel.add(textfield, "textfield component");
      add(panel);

      label.addMouseListener(new MouseAdapter() {
         public final void mouseEntered(MouseEvent evt) {
            textfield.setText(label.getText());
            cl.show(panel, "textfield component");
         }
      });
      textfield.addMouseListener(new MouseAdapter() {
         public final void mouseExited(MouseEvent evt) {
            label.setText(textfield.getText());
            cl.show(panel, "label component");
         }
      });
      setSize(375, 250);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setLocationRelativeTo(null);
      setVisible(true);
   }
   public static void main(String[] args) {
      new JEditableLabel();
   }
}

Output

raja
Published on 12-Jul-2019 22:42:35
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